Once you reach level 120, you might not be interested in going through the same process again with a different character. Download 4.3.4 WoW Cataclysm Client is complete, if you have followed the steps above. This is an addon that you will be able to use after you reach level 120 in the World of Warcraft game. First and foremost, thank you to everyone who played Battlegrounds last week and sent us thoughtful and informed feedback on same-faction play. 20 Best World of Warcraft ( WoW) Addons - iRiverAmerica.